What will be the theoretical elongation of outside fibre in ratio to the neutral axis, if inside bend radius is equal to the material thickness and the bending factor is equal to 0.33?

What will be the theoretical elongation of outside fibre in ratio to t

1.	What will be the theoretical elongation of outside fibre in ratio to the neutral axis, if inside bend radius is equal to the material thickness and the bending factor is equal to 0.33?
A.	14.5%
B.	25.3%
C.	40%
D.	50.3%
Answer» E.